main{
    overflow: hidden;
    width: 100%;
    min-height: 1000px;
    .erwei{
        width: 100%;
        min-height: 600px;
        background: url(../img/ew1.webp) no-repeat;
        position: relative;
        img{
            position: absolute;
            width: 142px;
            height: 142px;
            top: 318px;
            left: 1209px;
        }
    }
    .background1{
        height: 490px;
        width: 100%;
        background: url(../img/beijing1.jpg) no-repeat;
        overflow: hidden;
        .con{
            width: 1090px;
            height: 100%;
            margin: 0 auto;
            .title{
                font-size: 42px;
                margin-top: 170px;
                line-height: 42px;
            }
            .desc{
                font-size: 18px;
                margin-top: 20px;
                line-height: 18px;
                color: #999;
            }
        }
    }
    .background2{
        background: url(../img/beijing2.png) no-repeat;
    }
    .background3{
        background: url(../img/beijing3.jpg) no-repeat;
    }
    .background4{
        background: url(../img/beijing4.jpg) no-repeat;
    }
    .yanxuan{
        width: 100%;
        min-height: 100px;
        .yanxuan-con{
            height:682px;
            width: 1100px;
            padding-top: 80px;
            margin-right: auto;
            margin-left: auto;
            .background5{
                width: 356px;
                height: 505px;
                background: url(../img/beijing5.png) no-repeat;
                background-size: 100%;
                margin-right: 15px;
                float: left;
            }
            .background6{
                background: url(../img/beijing6.png) no-repeat;
            }
            .background7{
                background: url(../img/beijing7.png) no-repeat;
                margin-right: 0px;
            }
        }
    }
}